The installation involves more than just plants and incorporates wind, water and geology.

Mr Sinclair and Ms Kronemyer said sexual preferences evolved with the surrounding environment so it made sense for the two concepts to intertwine.

“We believe the biggest sex organ is the brain, and that if we apply our faculties for imagination and sensory immersion to the environment, we can learn to love the earth and respect the diversity and intricacy that exist around us everyday,” the duo said.

Mr Sinclair and Ms Kronemyer said they wanted people to question how they related to the biosphere, how much they valued it and how they were immersed in its sexual vitality, whether people acknowledged it or not.

Two women bathe in soil at the Ecosexual Bathhouse. Picture: Pony ExpressSource:Instagram

They said when people had their first brush with ecosexuality they were nervous.

“Reactions have been a mix because we really provide the architecture or tools to explore with,” the duo said.

“Some people have stayed for a really long time and discovered all the hidden, quiet details.

“Mostly people come out re-energised and very soothed or relaxed.

“Some have said they want the show to be even larger with more rooms to go even deeper into the world we’ve created.

“Others have said that as soon as they heard the language around ecosexuality, they knew they identified with it.”

Melbourne’s Ecosexual Bathhouse is being funded by taxpayers, with Melbourne City Council giving the Next Wave Festival $90,000.